I stumbled on the expression subpartition of a set: in my context $V$ is a set (of nodes) and "$A, B$ is a subpartition of $V$".
What does this phrase means exactly and how does it differ, if it does, from a partition?
2026-03-26 04:50:29.1774500629
Definition of subpartition
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A subpartition is a subset of a partition.
$A$ and $B$ are disjoint subsets of $V$ but their union may not be exhaustive.
$A\subseteq V$, $B\subseteq V$, $A\cap B=\emptyset$, $A\cup B\subseteq V$